ENAMELED PRODUCTS AND GLAZE

摘要

The invention provides enameled products which are improved in the tight adhesion of steel substrate and porcelain enamel layer and are excellent in the resistance to sulfuric or hydrochloric acid dew point corrosion; and a glaze. An enameled product obtained by forming a porcelain enamel layer having a thickness of 50 to 700µm on the surface of a substrate made of a steel containing by mass Cu: 0.05 to 0.5%, Si: 0.1 to 2.0%, Mn: 0.05 to 2.0%, P: 0.005 to 0.10%, S: 0.005 to 0.1%, and C: 0.20% or below with the balance being Fe and unavoidable impurities, wherein the Co oxide content of the porcelain enamel layer is controlled to be 0.01 to 10% in terms of Co and/or the Ni oxide content thereof is controlled to be 0.05 to 20%in terms of Ni, or alternatively the total Ni content of the substrate and the porcelain enamel layer is controlled to be 0.005 to 4.5% based on the whole mass of the enameled product and/or the total Co content thereof is controlled to be 0.008 to 4.0% based thereon.